Understanding Anal Stricture

An anal stricture is a narrowing of the end of the tube (anal canal) that takes stool out of the body. This can cause pain and other problems with passing stool.

Understanding Alopecia Areata

Alopecia areata is a condition that causes your hair to fall out. It causes bald patches on the scalp, but it can also cause hair loss on other parts of the body.

Understanding Actinic Keratosis

Actinic keratosis is a skin growth caused by sun damage. Many people get these growths, especially as they age. This is because of regular exposure to the sun over years.

Understanding Acanthosis Nigricans

Acanthosis Nigricans is a skin condition that causes dark, thick patches on the skin. It is more common in people who have diabetes or are at risk of developing diabetes.

Understanding Zika

Zika is a virus spread through the bite of a mosquito. It may also be passed on through sexual contact and blood transfusions.

Understanding Yersiniosis

Yersiniosis is a foodborne illness. It causes inflammation in the small intestine and colon. It is more common in children.

Understanding Tinea Unguium

Tinea unguium is a type of fungal infection. The fungus infects the fingernails and, more commonly, the toenails. It's more common in men, older adults, and people who have diabetes or peripheral vascular disease.

Understanding Tinea Cruris

Tinea cruris is a type of fungal infection. The fungus infects the skin in the groin. It is more commonly called jock itch.

Understanding an Intrathecal Pain Pump Implant

An intrathecal pain pump implant is a way to relieve some kinds of long-term pain or cancer pain. It sends pain medicine through a thin, flexible tube. The tube is inserted into the space around the spinal cord.